 /*******************************************************************************
  * Copyright (c) 2005, 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/

 package org.eclipse.osgi.internal.baseadaptor;

 import java.io.*;
 import org.eclipse.osgi.baseadaptor.BaseData;
 import org.eclipse.osgi.framework.adaptor.BundleData;
 import org.eclipse.osgi.framework.adaptor.BundleOperation;
 import org.osgi.framework.BundleEvent;
 import org.osgi.framework.BundleException;

 public class BundleUninstall implements BundleOperation {
     private BaseData data;
     private BaseStorage storage;

     public BundleUninstall(BaseData data, BaseStorage storage) {
         this.data = data;
         this.storage = storage;
     }

     /**
      * Perform the change to persistent storage.
      *
      * @return Bundle object for the target bundle.
      * @throws BundleException If a failure occured modifiying peristent storage.
      */
     public BundleData begin() throws BundleException {
         return data;
     }

     /**
      * Commit the change to persistent storage.
      *
      * @param postpone If true, the bundle's persistent
      * storage cannot be immediately reclaimed.
      * @throws BundleException If a failure occured modifiying peristent storage.
      */
     public void commit(boolean postpone) throws BundleException {
         BaseStorageHook storageHook = (BaseStorageHook) data.getStorageHook(BaseStorageHook.KEY);
         try {
             storageHook.delete(postpone, BaseStorageHook.DEL_BUNDLE_STORE);
         } catch (IOException e) {
             // nothing we can do
 }
         storage.processExtension(data, BaseStorage.EXTENSION_UNINSTALLED);
         data.setLastModified(System.currentTimeMillis());
         storage.updateState(data, BundleEvent.UNINSTALLED);
     }

     /**
      * Undo the change to persistent storage.
      *
      * @throws BundleException If a failure occured modifiying peristent storage.
      */
     public void undo() throws BundleException {
         // do nothing
 }

 }

